import time
import build.monitor_time_test as monitor_time_test

def fun2():
    t0 = time.monotonic_ns()
    print("fun2 start us: ", t0 / 1000)

def fun1():
    t0 = time.monotonic_ns()
    print("fun1 start us: ", t0 / 1000)
    time.sleep(1)
    fun2()

if __name__ == '__main__':
    fun1()
    monitor_time_test.fun1()
